@misc{10481/51138,
year = {2018},
month = {1},
url = {http://hdl.handle.net/10481/51138},
abstract = {We present a systematic study of the normalized symmetric cumulants, NSC(n,m), at the eccentricity level in proton-proton interactions at √s=13TeV within a wounded hot spot approach. We focus our attention on the influence of spatial correlations between the proton constituents, in our case gluonic hot spots, on this observable. We notice that the presence of short-range repulsive correlations between the hot spots systematically decreases the values of NSC(2, 3)and NSC(2, 4)in mid-to ultra-central collisions while increases them in peripheral interactions. In the case of NSC(2, 3)we find that, as suggested by data, an anti-correlation of ε2and ε3in ultra-central collisions, i.e. NSC(2, 3) <0, is possible within the correlated scenario while it never occurs without correlations when the number of gluonic hot spots is set to three. We attribute this fact to the decisive role of correlations on enlarging the probability of interaction topologies that reduce the value of NSC(2, 3)and, eventually, make it negative. Further, we explore the dependence of our conclusions on the number of hot spots, the values of the hot spot radius and the repulsive core distance. Our results add evidence to the idea that considering spatial correlations between the subnucleonic degrees of freedom of the proton may have a strong impact on the initial state properties of proton-proton interactions},
organization = {AS would like to thank Maxime Guilbaud and Antonio Bueno for profitable and enlightening discussions. Further, AS thanks the Dpto. de Física Teórica y del Cosmos in the University of Granada for the warming hospitality during the early stages of this work thanks to a grant from the COST Action CA15213 THOR. This work was partially supported by a Helmholtz Young Investigator Group VH-NG-822 from the Helmholtz Association and GSI, the Helmholtz International Center for the Facility for Antiproton and Ion Research (HIC for FAIR) within the frame-work of the Landes-Offensive zur Entwicklung Wissenschaftlich-Oekonomischer Exzellenz (LOEWE) program launched by the State of Hesse, a FP7-PEOPLE-2013-CIG Grant of the European Commission, reference QCDense/631558, and by Ramón y Cajal and MINECO projects reference RYC-2011-09010 and FPA2013-47836.},
publisher = {Elsevier},
title = {Symmetric cumulants as a probe of the proton substructure at LHC energies},
doi = {doi.org/10.1016/j.physletb.2018.01.011},
author = {López Albacete, Javier and Petersen, Hannah and Soto-Ontoso, Alba},
}